Good place to pick up flywheel bolts?

Boss 351

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Jul 13, 2003
2,433
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Canada
I need the longer manual flywheel bolts (that go into the crank). Can I just use some very good grade bolts instead of factory bolts? I had the shorter automatic bolts which won't hold up to the abuse of the rebuilt engine and slicks...
 
10 bucks USD would cost me around 25~35 bucks with shipping and exchange which is pretty good since the stock Ford bolts are 30 bucks here... the local jack-ass "performance" store wants 150$ for the ARP flywheel bolt kit...